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United States Department of Agriculture

Agricultural Research Service

Mark A. Liebig

Research Soil Scientist

Dr. Mark A. Liebig serves as a Research Soil Scientist at the USDA-ARS Northern Great Plains Research Laboratory (NGPRL). Originally from a small farm in the central Platte Valley of Nebraska, Mark holds degrees from University of Colorado (B.A.) and University of Nebraska (M.S. and Ph.D.). Mark’s research program at NGPRL is broad, encompassing soil quality and gas flux evaluations of crop, grazing, biofuel, and integrated management systems. He is an ARCPACS Certified Professional Soil Scientist, holds an adjunct appointment in the Department of Soil Science at North Dakota State University, and serves as an Associate Editor for Soil Science Society of America Journal. Mark has held elected offices in the Soil Science Society of America and Soil and Water Conservation Society, and has authored or co-authored >160 publications in scientific journals, proceedings, book chapters, extension bulletins, and popular press newsletters.

 Photo of Mark Liebig


Six steers inspect Dr. Liebig's gas sampling technique in a crested wheatgrass pasture.


Current Research
     Research Results & Technology Conference, February 15, 2010

Winter Grazing Effects on Soil Quality
     Research Results & Technology Conference, February 24, 2009

Soil Carbon Sequestration and Switchgrass      View      Download

Scientific Posters

Soil Carbon Change under Switchgrass in the Northern Great Plains

Long-term Agroecosystem Experiments and Sample Archives at USDA-ARS-NGPRL

Soil Response to Long-term Grazing in the Northern Great Plains


Managing agricultural greenhouse gases: Coordinated agricultural research through GRACEnet to address our changing climate. Liebig, M.A., A.J. Franzluebbers, and R.F. Follett (Eds.). Academic Press, San Diego, CA. 2012.

Recent trends in soil science and agronomy research in the northern Great Plains of North America. Malhi, S.S., Y.T. Gan, J.J. Schoenau, R.L. Lemke, and M.A. Liebig (Eds.). Research Signpost, Trivandrum, Kerala, India. 2010.

Decision Aids

Cover Crop Chart

AgroEcosystem Performance Assessment Tool


Soil Science Society of American Fellow Award, 2012.

Soil and Water Conservation Society, Conservation Research Award, 2008.

USDA-ARS-NPA Early Career Scientist of the Year, 2007.

Soil Science Society of America S-6 Young Scholar Award, 2003.

Research Experience

1999 - present: Research Soil Scientist, USDA-ARS Northern Great Plains Research Laboratory, Mandan, ND.

1998 - 1999: Postdoctoral Research Associate, USDA-ARS Soil and Water Conservation Research Unit, Lincoln, NE.

1992 - 1994: Research Technologist, University of Nebraska, Lincoln, NE.

Educational Background

University of Nebraska; Agronomy; Ph.D. 1998.

University of Nebraska; Agronomy; M.S. 1992.

University of Colorado; MCD Biology; B.A. 1990.

Last Modified: 3/2/2015